Electrical controlling apparatus.



51 D- EHLDER. SPECTRlCAL CONTROLLING APPARATUS.

APPLICATION FILED AUG, 5. I912.

Patented 0st. 12

v S TW G E} EIITRFEELLDV i3;

JOHN D. IHLnEn, OF new "r GI'IIY, N11

inc. 3, movable Loner contacts the magnet is v 8 and 7 mov- 55 oneryconwhen the inegnet oonstruction of the similar. ,Tlfhe two erahiy interconnected by =2 80 ehle inesns to prevent both W6? contacts being closeel To all to ho m it may concern:

Be it known that 1, JOHN citizen of the United Sta es, N ew} York, in the county oi State of New York, have inve ti-11d useful Improvement in V trolling Apparatus,- of which the :tollo is a specification. My invention relates to r tric motor control in which or load magnet as it is s automatically operates cliiri clown of the motor to intro. amount of resistance in a ly 15 the amount of said resistance pi circuit varying inversely as the N" r swi motor, to effect suhstentie iv t clurir' slowing down and. stopping engegeniem 1 from any suitable "netted and re 65 ton is held closed by "he normal operation circuit for the pomay be traced from 70 n hoe 12, throngs. both switch I, conductor '7 1e, conducswitch. r6, vpeer lower L, conclu-ctcrs 3?, 16, po 17, end through the I e main,

in an upward direction,

with varying loads. The controlling :necl 20 nism comprises a manually operable switc for controlling the siowing clown V ping of the motor, and also rmtorenttic motion mechanism to effect c at a predetermined period or A n object of my invention is to provide 311911 mitomotically to control the load. r and cause on independent dynamic. braking action when the stop motion niech m in operates, than when the slowing down ie the switch. is moved to S0 l 1 v A IL col through the operation of the manual t0 orin inemel. contact if:

switch. into en'-'agen1ent he static-her con- This col pleres a circuit t rough gnet coil of the reversing Witch from the po main, throu,

11, 12, oer so )7 switch It, con- 7 1, switch. cortacts 22,18, 19, con elucrsin v 9 ch coil 1, conductor 24., oi the stop motion switch, conjunction At this point 90 branches; one lemi ex tcnsiing ugh n resist L66 to the junction 29,

2: 1 the other lecci. extensling through c051 -5 Spl- The accompanying drawing :1 diagram-- metic illustration of e system of electric motor control embodying; my invention, the

particular form of mechanism herei r shov 'n being adapted for use in an elevator sj stein. The apparatus as shown comprises main line switch D, a, potential switch P, :1 ual car switch or controlier K, revers 40 switches R and R", an accelerating mag.

E controlling a sectional Stiiltlng resistance H, and. aseries fielci winding F, a field S, limit switches L, if, a speed go'vci nor G, a car safety switch I, all of which coin'iuctor 33,

may be of usual or Well-known construc-- heck 'tion. The lozul magnet L controls csista 3 placed in series with or used extra field Winding Q, tidal heated in a circuit across t motor armature Wt. The 1.. 7 comprises a magnet coil 1, :1 ma

mots and 31 oi the stop motion switch,

iet coil 34, conductor 35, 1c loezl. magnet '1, and

m thence the circuit v 'liictc rii 3? il 16,

.186 to ch accelerating n'mfnet therefore receives cur- 4, rent in }')ropori on to the speed. oi the motor comluctoi. ites in z: Well-1111mm n'izumcr to short circuit the remaining sec 2? the starting: resistance ll and series 70 ,7 H mom. the positive 11, POTQH'QZUI S'Wil u 5 '20, seiics held 1' a starting resistance l:,,co11(luctore38,3?) buck contacts llli l'lGlLl F, thereby bringing the motor up to liolalin j coil ll conductor l2 to brush ooriiml so The operation oil the lust of the motor ern'iziture. From the opposite a; y brush 'ill the circuit continues through conb2 1; ihictors l5, i l-(l, heel: contacts 47, conductors 2 48, all), switch contacti" 2, 4, conductor 50, potential switch contacts 1'7, and to the DQ3521- i. el.;o HQPEUZIUJS the contacts r; ening; the extra field circuit Li Wei honing the motor field, prior to the 75 oration ojli' t accelerating inugzjnct. The stop motion switch mechanism cointive ma circuit across the grim: prises :1 number of cams 1L 3 and C, which brushes valso completed follows: are :Hlzi to be operated mitoinatitalljv 15 "i lc hlUSh thro' h conductor #2. holo in the wit 1 named to ciilcct o slmving down 0 U: &9, conductor-s 39, 3& .i stop 1' of the motor independently of 53. back cohto of tlie act spec mulch-K. This stop motion switch at EFF), conductor "Whom used in elevators is ordiclo. coil conductor ed to operztc entoiimticelly as 21} 30296 me cur nears either limit of travel when for h c i .he manual switch K has not zit ed at the proper time or Mile to once hack cf ho '5; Hi and to hr! .1 through the shunt liclil traced from the i {lucter ll, (:Jitzcts l0, conductors shunt held 5 cimlucto s 5%, 4d 325 tccts conductor a to the I! getive main. A circuit for "t" fil'fililil =tic l I i slowing down when the mechanism brought 9Q ljollm'w't The can) A first i ,v -l lw (1L0 eitiiei toe contacts ()6 i 213th mink positi re main, iliziry COllb/JClQS 30 conductor Winding ne conductor 59, mix" conductor 51, eiixilie. y Ci lav he car is; groing up the contacts 4 I tell, thereby opening the cirthe hm; speed magnet which drops cire and operat to reduce the motor 1 Eng: the circuit of the accelerati inljitotiid 1g the, starting l ctor ill. en potential switc J- u 1 or bli? hrziiae cm conductor concrete 5. "I, conchictoi 50-, and thence to he sc ies field F into the i 35 The orelre magnet being At the some tune the 1100 zilie is liliteil nth-cl the motor again complete the extra The i'i'iotor starts with '11 xlierehy further retard the 1 'z i. H T

5; too aeries felon Sillll'lb i a .4 A. no cum .0 next operates to sepa etc l contacts 352. 'lhie opens the ch"- "'1 the auxiliary load magnet 3'/L,105

,he contacts '2 to come together ,1 :1 circuit throegh the load magi iis c'rcuit which is iicross the CMVlHZI ci irre The coiitihii 'i' s completes it ..i iziotoz' armature new be traced from the i6. weed magnet whaling as li-xoth through conductor 42, coil 41, positive main, through colulcctors' ill 12, cont (l, conductors 39, 38, 51, contacts ewflch .l. coorhictor 21., controller cents L comluctor 53, magnet coil L, contacts 79, 22, 1.8, liil. oi'ichict r l. I eorilue m-e 55 E36 auxiliary contacts 63, conductor (7, ,i'imliogiifv of" (l 1-? l8, eoi'itec'ts l7, conductors net F5, conductor (13% or 46, 4-5 to brush 4-2;. The function and ophi( :tors37',l6"" mu the lOftCl magnet are fully set iimio. ltest speecl r fore opforth in my patent for improvements in era-fies \i 11 the "followi i "i. section. elevators, 1 10,5551, ()ctoher T, 1902, and

rec H s :hirt-cirv ecl only be briefly refer:

( d to here. The 55 walnuts T1 of tl wing energized, operates to 'eh'y ,pe i ting; ti. 2e of the contacts a, b a, thereto uceele The accelerating; niacin iieuitiiigj an amount of the extra conne-el he motor ari'oetur ii proportional to the speed of circuit *7: 4 The eonmcts (a, 7) and. cwhich Ml coil for xrmgnct L 1 5 distances from the 1 M D or toopeate in (nu-tor 4', NllHllli ees cl." 7' F. conduc implc 4U more is a iffilfl. 211301" repondingiy high speed of the m" flnm the larger proportion (if the i'esis zume be short-circuited. with a co'i'i'espou of current in the main be simlikitii'f'i hm field Wiii receive As a result reduced to peniieniiy of It should be 3101Ai 'hii scribed. the 'opamtion m whim variable I'QCiHCBiOZl sp aeq fLCtS..'Ti1Q mm than magnet L canned-ed (i moior armature iill'ulilgii t a ,i (11d mugtraced, closing 1110112 or igss 01" the armature and thereby reducing; the speei iimn in the case loads '50 :fiha pr rmine'i. 2112M iiw mun A 0pm0 severe in xnvem ni than i .;iistop mecl1- resi fiance S0 is iigpt down sl'nocih stopis 1102'; yet 0172mm I switch magi st Sn ti:

1S cgened out siiikhi mi: The toparimt the Qi9CiHf0- 1 is in the from "shat due to above (iQSC'iibMi. voiveci is intmc 80 in circuit "wiizii i UIPOSG flndfiflflfilatifili stated later.

When bile operaand sibop the nmved back tact 18 runs; through th which is a I} which W that sni'L operain magnet 39 abmfi csntroi auimmatic s0 m3 L does not open switch circuit is Qpiimci in the cimuit of the V i auxiliary STREET;

i the reversing 5v aspara- Whian file contrniiei' a down" ii; dawn dim "3 stmitiaily in c0i1- the load wiiei K is magnet latter cpgxuies the nmtor 2. F221;. from that of 13pm: rd

It will be understaxxl is adapted "for use with '11. conuufling :zppzu'nms oflsm' J in disclosed, and (:mnpreimn" V fivntions as (01110 within the sac-mp0 m pended ciaims sh Lil ark" limii ud in (he precise wrungvineni of :qgpzzz'utus .5112 vo'rilbinntinn of a manually cona vn'cuxt dwwn or metal) mmm {O nun-(wince U a nd the;

means i 3h the suixl him", and mum 111 5nd fir 0 1 down upwv .1011 MY an aim. 7

com m means conirofled tin-z M11021 0'? the mater v u il'numai' lever opomblc )lviion of a. circuit Lhrsmgh he 10ml v mncc 'ruul 11mins operepvm ently of Hm manual IGVLZ. to a ifiil'fiiii through i310, 10ml magwt 7 1y of said 1': zmcu. (tunlbination 01' Her, an autmnutic confirm wsistzmce mntmHud adapted to he plncmi (mi mugnwu. w

. I rem ell'mzi;

slaw down navvhunism ups; I retarding zai-tion iu the mow? pzrnpo V to the spawd 0f the as-0km; u wanna! devic s for effecting {he operation of Sui-1} almv (07m mechanibm, and mimmutir: 111021 t amsm.

2. The combination of an controlling apparatus ii my; sing; mnnualiy r mtrn1 =xi means 0111121322111 01101: 210 to CENT 2! slowing G0 3?! uciicn i2 cubiish uisu in UTGUGZ" 2111K HUIOHIHTEU sluwing down means in p11 mfu-l slowing down 21 :5; tion to the motor speed.

23. The combirmtion of :m c'lvarirla' controlling; mechanism 'f119)'" an field viz-m5? x'wistuz cult, :m ILZNC-i mum) sisizmc'e, said. 3%.- pzu'uHs-i W5 til" m-u'im arm "mining dj zummms w" rmmtzznim Jflishiwz;

1 1- I an '0 we 11.4: separate means an 1111 not (:ircuitb- :lm

an electric motor,' 

